step-component{
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-flex: 0;
  -webkit-flex-grow: 0;
  -ms-flex-positive: 0;
  flex-grow: 0;
  -webkit-flex-shrink: 0;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  > * {
    display: block;
  }
  > [data-flex] {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
  }
  .line{
    width: 1px;
    height: 100%;
    background: #ccc;
  }
}
